Ionospheres of outer planets

Mahajan, K. K. (1987) Ionospheres of outer planets Indian Journal of Radio and Space Physics, 16 . pp. 192-206. ISSN 0367-8393

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Ionospheres of Jupiter, Saturn and Uranus are reviewed on the basis of existing experimental measurements and theoretical models. The radio science experiments on Pioneer 10 and 11 and Voyager 1 and 2 indicate the presence of equatorial anomaly in the ionospheres of Jupiter and Saturn. Peak electron densities inferred by interpreting electrostatic discharges as lightning associated radio bursts, indicate large diurnal changes in the ionospheres of Saturn and Uranus. Simple photochemical models cannot explain the altitude of peak electron density in case of Jupiter and the peak electron density, as well as its altitude in case of Saturn. Factors like ion drifts, H2 vibrational temperatures, particle precipitation, water from the rings can play major role in the ionospheres of these planets. It appears that while the ionosphere of Jupiter is controlled by particle precipitation processes, the ionosphere of Saturn is influenced by water from the rings. For Uranian ionosphere, particle precipitation as well as water from the rings, are likely to be important.

Item Type:Article
Source:Copyright of this article belongs to National Institute of Science Communication and Information Resources.
Keywords:Gas Giant Planets; Jupiter Atmosphere; Planetary Ionospheres; Saturn Atmosphere; Uranus Atmosphere; Atmospheric Models; Ionospheric Electron Density; Pioneer Space Probes; Radio Occultation; Voyager Project
ID Code:75198
Deposited On:22 Dec 2011 03:34
Last Modified:22 Dec 2011 03:34

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